Any updates on this? I too have just got an astro van H/B and am going to put it on my Challenger this winter. Cass at Dr Diff suggested a 1 1/8 master with the H/B so I'll get one off him to try.It's the lines that have me wondering at the moment? What did you do for lines? What pump are you going to use? I thought I'd just use the stock power steering pump on the car?